Model: J17 S4 - Automatic firmware upgrade Supports automatic firmware upgrades to ensure you are always running the latest V2. After the upgrade process, the device operates with the latest V2 firmware for improved stability and features. - Full STM32 SWD debugging support Provides full compatibility with the STM32 SWD interface for debugging. The interface is simple and self contained including power supply, offering 4 line speed settings for stable operation. Interface shell addresses are pre defined for direct use, so you can get started without consulting the manual. - Easy to use copper plated interface Features a pure copper plated interface with 2.54 mm spacing (2.54 spacer header). Includes a 20 cm lead for flexible connections. Supports processing different target card line sequences, enabling flexible and reliable connections across various boards. - 5V output with I/O protection Provides increased output power at 5V while protecting the I/O ports. The design helps prevent damage from wiring or signal errors, enhancing reliability when using the LINK V2 system. 2-3 practical use scenarios - STM32 firmware development and debugging Use during firmware development to debug STM32 projects via SWD, benefiting from automatic firmware updates, reliable SWD interface, and stable operation. - Field firmware upgrades Use in field maintenance to upgrade devices with SWD access, leveraging the pre defined interface addresses and robust 5V output protection to minimize risk during upgrades. - Prototyping and lab testing Use in a development bench or lab to connect multiple target boards with flexible 2.54 mm spacing and a 20 cm line, enabling quick testing of various card sequences and ensuring dependable connections during prototyping. Key attributes - Function: automatic firmware upgrade, STM32 SWD debugging, flexible target connections, 5V output with I/O protection - Compatibility: STM32 SWD interface, LINK V2 ecosystem - Size and interface: 2.54 mm header spacing, 20 cm line - Material: pure copper plated interface - Performance: four line speed settings, stable operation, direct pre defined interface addresses for immediate use